Add products. Each card has its own unit selector (g / kg / ml / l) next to the weight — mix and match freely.
3
Tap Calculate — all weights are normalised to the same base so the comparison is always fair. Best value turns green, worst turns red.
4
Tap Scan barcode on any card. The app checks your local saved products first, then queries Open Food Facts. Name and weight fill in automatically when found.
5
New products you scan and fill in are saved locally for instant recall next time. Tap 📦 to manage your saved database.